Public bug reported:
After upgrade frpm 18LTS to 20LTS I've lost the network.
Network is managed by ifupdown
Netplan is not installed
Network manger is disabled (masked)
Yet, at boot, SOMETHING starts dhclient for every network interface.
This has disastrous results - dhcp request succeeds on physical
interface that is a base for a vlan-based interface, causing real dhcp
request on to fail on vlan interface.
Expected behavior - dhclient starts only for interfaces marked as dhcp
in /etc/network/interfaces .
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: isc-dhcp-client 4.4.1-2.1ubuntu5
ProcVersionSignature: Ubuntu 5.8.0-29.31~20.04.1-generic 5.8.14
Uname: Linux 5.8.0-29-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.12
Architecture: amd64
CasperMD5CheckResult: skip
Date: Wed Nov 25 00:07:45 2020
SourcePackage: isc-dhcp
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: isc-dhcp (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1905472
Title:
Something starts dhcclient for every intrface on boot
Status in isc-dhcp package in Ubuntu:
New
Bug description:
After upgrade frpm 18LTS to 20LTS I've lost the network.
Network is managed by ifupdown
Netplan is not installed
Network manger is disabled (masked)
Yet, at boot, SOMETHING starts dhclient for every network interface.
This has disastrous results - dhcp request succeeds on physical
interface that is a base for a vlan-based interface, causing real dhcp
request on to fail on vlan interface.
Expected behavior - dhclient starts only for interfaces marked as dhcp
in /etc/network/interfaces .
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: isc-dhcp-client 4.4.1-2.1ubuntu5
ProcVersionSignature: Ubuntu 5.8.0-29.31~20.04.1-generic 5.8.14
Uname: Linux 5.8.0-29-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.12
Architecture: amd64
CasperMD5CheckResult: skip
Date: Wed Nov 25 00:07:45 2020
SourcePackage: isc-dhcp
UpgradeStatus: No upgrade log present (probably fresh install)
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